Sooty babbler 
(Khướu đá mun, Stachyris herberti)

The sooty babbler (Stachyris herberti), which is endemic to Laos and Vietnam, is a species of bird in the family Timaliidae.

Timaliidae, Timalia: The word "Timalo" originates in the Greek "Thimalos", which means "bird". This Greek root was adapted to Latin as "Timalus" and later to Portuguese as "Timalo".
Stachyris: combines the Ancient Greek stakhus meaning "ear of wheat" and rhis, rhinos meaning "nostrils" referring to the opercula almost closing the nostrils (nares).